Siemens Sinumerik 840C Diagnostics Manual page 41

04/96
07/97
2064 Wrong programming of rounding axis
Scan
When executing a part program
S
Effect
Interlocking of NC START
S
Programmed path is not exited
S
Machining stops
Explanation
If a rotary axis is rounded to a half or whole degree, then the control monitors whether the rounding has been
maintained for the programmed positions.
S
Remedy
Program correct position in the rotary axis
S
Check the machine data "Whole/half degree" and "Rotary axis"
S
Check whether the interface signal "Clear distance to go" has been set, in which case no automatic rounding
takes place.
Note
In the JOG modes, the control automatically rounds to valid values. In AUTOMATIC or MDA, the control only
monitors the programmed positions without itself carrying out rounding.
Note
Alarm is displayed with reference to block and channel
2065 Progr. position behind SW limit switch
Scan
When executing a part program
S
Effect
Interlocking of NC START
S
Programmed path is not traversed
S
Machining stops
Explanation
The programmed end point of the block is beyond the software limit switch.
S
Remedy
Correct program
S
Machine data "1st software limit switch plus"
S
Machine data "1st software limit switch minus"
S
Machine data "2nd software limit switch plus"
S
Check machine data "2nd software limit switch minus" depending on the PLC interface signal "2nd software
limt switch active"
Note
Alarm is displayed with reference to block and channel
2066 Thread increase/decrease too high
Scan
When executing a part program
S
Effect
Interlocking of NC START
S
Machining stops
Explanation
A thread or lead increase or decrease of more than 16 mm/revolution
(0.6 inches/revolution) has been programmed.
S
Remedy
Program smaller lead increase/decrease
Note
Alarm is displayed with reference to block and channel
2068 Position behind working area limitation
Scan
When executing a part program
S
Effect
Interlocking of NC START
S
Programmed path is not traversed
S
Machining stops
Explanation
The programmed end point of the block is beyond the working area limitation.
S
Remedy
Correct program
Note
Alarm is displayed with reference to block and channel
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Siemens AG 2001 All rights reserved 6FC5198–jAB40
SINUMERIK 840C / SIMODRIVE 611–D (DA)
1 Alarms
1.5.1 Alarm description
Reset key
Reset key
Reset key
Reset key
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